Anodic biofilm in single-chamber microbial fuel cells cultivated under different temperatures

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Lihong Liu
  • Olga Tsyganova
  • Ay Su
  • Jo-Shu Chang
  • Aijie Wang
  • Nanqi Ren

Detail(s)

Original languageEnglish
Pages (from-to)15792-15800
Journal / PublicationInternational Journal of Hydrogen Energy
Volume37
Issue number20
Publication statusPublished - Oct 2012
Externally publishedYes

Abstract

The microorganisms in anodic biofilms of a microbial fuel cell (MFC) oxidize substrates to generate electrons, protons, and metabolic products. This study started up two single-chamber MFCs at different temperatures (25 °C for MFC A and 15 °C for MFC B); after successful startup, the cell temperatures were swapped. The MFC A had peak voltage at 540 mV at 25 °C, which was decreased rapidly as fed substrate was consumed. At 15 °C, the MFC A yielded a nearly constant voltage of 500 mV over complete feed cycle. Conversely, the MFC B produced higher maximum power than MFC A, and can deliver nearly constant voltage over the entire feed cycle at either 15 or 25 °C. Electrochemical analysis revealed that the MFC B had lower internal resistance than MFC A, with the former having much lower anodic resistance than the latter. Microbial analysis showed that the MFC started up at low temperatures had anodic biofilm enriched with psychrophilic bacteria Simplicispira psychrophila LMG 5408(T)[AF078755] and Geobacter psychrophilus P35(T)[AY653549]. This study suggests the strategy to promote the development of anodic biofilms at low temperatures that are capable of yielding electricity at constant voltage. © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

  • Anodic biofilm, Microbial community, Microbial fuel cell (MFC), Psychrophilic bacteria

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Anodic biofilm in single-chamber microbial fuel cells cultivated under different temperatures. / Liu, Lihong; Tsyganova, Olga; Lee, Duu-Jong et al.
In: International Journal of Hydrogen Energy, Vol. 37, No. 20, 10.2012, p. 15792-15800.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review